Robot cleaner



FIG. 1 is a perspective view of a robot cleaner showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The even broken lines on the robot cleaner and the areas within the even broken lines, show portions of the robot cleaner that form no part of the claimed design. 

CLAIM The ornamental design for a robot cleaner, as shown and described. 